Satya Nadella says that even with the company's massive success and $1 trillion market cap, Microsoft employees have a bad habit of 'not being able to push ourselves'

Microsoft passed Apple in market valuation recently, and is now the most valuable company in the United States at over $1 trillion.

But even after reaching unprecedented financial heights, Microsoft CEO Satya Nadella isn't kicking his heels up and relaxing.

"At Microsoft we have this very bad habit of not being able to push ourselves because we just feel very self-satisfied with the success we've had," he told Bloomberg in an interview published this week. "We're learning how not to look at the past."